Since very recently, maybe Software 22.22, I have two touch screen issues:
Credit card pin entry with the new interface doesn't work (some numbers, in particular 1, 2, 4, 5) react only randomly and rarely. Buttons still work.
And the function to cover the whole touch screen to close menus and disable background light never works. Quite annoying.
I feel like the upper left region of the touch screen also doesn't work in some menus as good as it used to, but it's difficult to tell. When I want to select stuff in a plot, the left side requires several tries or sometimes doesn't work at all.